Razor blade cartridge



FIG. 1 is a top plan view of a razor blade cartridge showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a perspective view thereof. 

The ornamental design for a razor blade cartridge, as shown and described. 